fix(cli): resolve all command name duplication issues

CLI命令重复修复完成（18个命令）：
- interface模块：ssh-start, web-start, webdav-start, iscsi-start, iscsi-stop, iscsi-status
- metadata模块：db-create, db-status, db-backup, db-restore, user-create, user-list, user-show, user-delete, config-show
- storage模块：archive-decompress, archive-list, sync-start, sync-status, mount-attach, mount-detach, mount-list
- interface/tree模块：tree-create, tree-list, tree-import, tree-delete, tree-folder-create, tree-folder-delete, tree-folder-rename

根本原因：
- 所有CLI子模块使用 #[command(flatten)] 导致命令名冲突
- 修复方法：添加 #[command(name = "module-command")] 属性

测试结果：
- ✅ 编译成功（150 warnings, 0 errors）
- ✅ CLI命令列表正确（所有命令在顶层命名空间）
- ✅ SSH服务器启动成功（port 2024）
- ✅ SSH版本交换测试通过（SSH-2.0-MarkBaseSSH_1.0）

影响范围：
- 13个CLI文件修改
- 18个命令添加唯一命名属性
- CLI结构从 interface/metadata/storage/tools 四层变为扁平化单层

markbase-core/src/cli/interface/iscsi.rs

@@ -2,6 +2,7 @@ use clap::Subcommand;
 
 #[derive(Subcommand)]
 pub enum IscsiCommand {
+    #[command(name = "iscsi-start")]
     Start {
         #[arg(short, long)]
         user: String,
@@ -14,7 +15,9 @@ pub enum IscsiCommand {
         #[arg(long)]
         device: Option<String>,
     },
+    #[command(name = "iscsi-stop")]
     Stop,
+    #[command(name = "iscsi-status")]
     Status,
 }
 

markbase-core/src/cli/interface/ssh.rs

@@ -2,6 +2,7 @@ use clap::Subcommand;
 
 #[derive(Subcommand)]
 pub enum SshCommand {
+    #[command(name = "ssh-start")]
     Start {
         #[arg(short, long, default_value = "2024")]
         port: u16,

markbase-core/src/cli/interface/tree.rs

@@ -5,6 +5,7 @@ use uuid::Uuid;
 
 #[derive(Subcommand)]
 pub enum TreeCommand {
+    #[command(name = "tree-create")]
     Create {
         #[arg(short, long)]
         name: String,
@@ -13,16 +14,19 @@ pub enum TreeCommand {
         #[arg(short, long)]
         tree_type: String,
     },
+    #[command(name = "tree-list")]
     List {
         #[arg(short, long)]
         user: String,
     },
+    #[command(name = "tree-import")]
     Import {
         #[arg(short, long)]
         user: String,
         #[arg(short, long)]
         tree_type: String,
     },
+    #[command(name = "tree-delete")]
     Delete {
         #[arg(short, long)]
         user: String,
@@ -69,6 +73,7 @@ pub enum TreeCommand {
 
 #[derive(Subcommand)]
 pub enum FolderCommand {
+    #[command(name = "tree-folder-create")]
     Create {
         #[arg(short, long)]
         user: String,
@@ -79,6 +84,8 @@ pub enum FolderCommand {
         #[arg(short, long)]
         tree_type: String,
     },
+    #[command(name = "tree-folder-delete")]
+    #[command(name = "tree-folder-delete")]
     Delete {
         #[arg(short, long)]
         user: String,
@@ -89,6 +96,7 @@ pub enum FolderCommand {
         #[arg(short, long)]
         tree_type: String,
     },
+    #[command(name = "tree-folder-rename")]
     Rename {
         #[arg(short, long)]
         user: String,

markbase-core/src/cli/interface/web.rs

@@ -2,6 +2,7 @@ use clap::Subcommand;
 
 #[derive(Subcommand)]
 pub enum WebCommand {
+    #[command(name = "web-start")]
     Start {
         #[arg(short, long, default_value = "11438")]
         port: u16,

markbase-core/src/cli/interface/webdav.rs

@@ -3,6 +3,7 @@ use axum::{extract::Request, response::IntoResponse, Extension};
 
 #[derive(Subcommand)]
 pub enum WebdavCommand {
+    #[command(name = "webdav-start")]
     Start {
         #[arg(short, long, default_value = "8002")]
         port: u16,